[VoiceOps] Strange inbound Calls

Nick Olsen nick at flhsi.com
Wed Oct 2 13:13:25 EDT 2013


Hello Everyone,
We've been seeing a lot of strange inbound calls to our toll free numbers 
recently. The only thing they have in common is the caller ID text is 
always a city and a state. And the the call duration is 60 seconds on the 
dot..Every time.
Considering they are calling toll free numbers I assume this is some kind 
of fraud attempt. IE. Calling tons of random Toll Free numbers so the 
terminating carrier pays the originator..etc.
Anyone else seeing this? Anything we can do to stop these? Here's what our 
CDR looks like, These are just the calls to our Corp Toll free. But we are 
seeing them toward customer toll free as well.
9/1/2013 13:39:02,"CARLSBAD CA" 
<4423334358>,4423334358,8553577333,60,60,ANSWERED,Incoming9/1/2013 
16:20:30,"WEST BLOCTON AL" 
<2056368142>,2056368142,8553577333,60,60,ANSWERED,Incoming9/6/2013 
07:18:18,"HUNTNGTN PRK CA" 
<3232825216>,3232825216,8553577333,60,60,ANSWERED,Incoming9/7/2013 
11:54:09,"FORT SMITH AR" 
<4796682810>,4796682810,8553577333,60,60,ANSWERED,Incoming9/7/2013 
23:14:35,"TUCSON AZ" 
<5203326555>,5203326555,8553577333,60,60,ANSWERED,Incoming9/9/2013 
19:06:00,"WARRIOR AL" 
<2052891452>,2052891452,8553577333,60,60,ANSWERED,Incoming9/9/2013 
20:23:49,"SAN RAFAEL CA" 
<4155240522>,4155240522,8553577333,60,60,ANSWERED,Incoming9/25/2013 
17:01:09,"FRESNO CA" 
<5595499612>,5595499612,8553577333,60,60,ANSWERED,Incoming9/25/2013 
22:41:29,"MOBILE AL" 
<2515454388>,2515454388,8553577333,60,60,ANSWERED,Incoming9/26/2013 
00:01:35,"PINSON AL" 
<2056834147>,2056834147,8553577333,60,60,ANSWERED,Incoming9/26/2013 
03:13:53,"PHENIX CITY AL" 
<3344685267>,3344685267,8553577333,60,60,ANSWERED,Incoming9/26/2013 
22:38:21,"GUNTERSVILLE AL" 
<2562934038>,2562934038,8553577333,60,60,ANSWERED,Incoming9/27/2013 
11:29:58,"MIAMI AZ" 
<9284731203>,9284731203,8553577333,60,60,ANSWERED,Incoming9/27/2013 
20:12:43,"ALBERTVILLE AL" 
<2564002365>,2564002365,8553577333,60,60,ANSWERED,Incoming9/30/2013 
02:07:15,"HUNTSVILLE AL" 
<2562174709>,2562174709,8553577333,60,60,ANSWERED,Incoming9/30/2013 
06:55:16,"CHASE CITY VA" 
<4345334010>,4345334010,8553577333,60,60,ANSWERED,Incoming10/2/2013 
02:23:12,"LOS ANGELES CA" 
<2134555680>,2134555680,8553577333,60,60,ANSWERED,Incoming
Nick Olsen
Network Operations (855) FLSPEED  x106


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